Hi All,
Besides the metal content of a meteorite we also have to consider the
optical emission of ionized gases around a meteor/bolide as a source of its
colour. Oxygen molecules will glow blue/green when excited (ionized) and
nitrogen, red. The oxygen is stated as blue/green because of people's
colour perception. To some it will apprear blue and to others, green. Hope
this helps.
Cheers,
Ralph A. Croning
IMCA#4326
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Message: 1
Date: Sat, 12 Jul 2008 23:09:41 -0700
From: "Mark Bowling" <[EMAIL PROTECTED]>
Subject: Re: [meteorite-list] Re Cu meteorite
To: <[email protected]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"
I've seen a few green fireballs/bolides over the years. The flame test of
copper is green so I've always wondered about this subject myself. Geologic
processes have produced relatively huge masses of copper in the earth, and I
don't see why that cannot occur elsewhere in the solar system. But I'm just
a biased copper miner... ;-) Something like that would be quite rare, but
possible I think.
Clear skies!
--
Mark B.
Vail, AZ
IMCA #6645 o(:-)
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